Method and apparatus for performing dithering

Details Method and apparatus for performing dithering Method and apparatus for performing dithering

2007-06-19

2007-06-19

Zimmerman, Mark (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S605000, C345S694000, C358S003130, C358S003140, C358S003160, C358S003180

Reexamination Certificate

active

10897100

ABSTRACT:
A method and apparatus for dithering may provide filtering M bit data and performing a temporal/spatial compensation based on LSB of the filtered M bit data. The dithering may be performed on a selected frame. M-2 bits of the M bit data may be specified as a reference gray scale value resulting from the filtered M bit data. Temporal compensation may provide adding a weight of ‘0’ or ‘1’ to the reference gray scale value, for example M-2 bit data. Spatial compensation may include horizontal or vertical mirroring, and may be performed to represent whole gray scales without saturation.

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